Home / 208,161.41-312,261.71-58,401.11

Finding the Fourth Proportional to 208,161.41, 312,261.71 and 58,401.11

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Solution

The fourth proportional to 208,161.41, 312,261.71 and 58,401.11 is: 87,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,161.41 : 312,261.71 = 58,401.11 : x
  2. Step 2: Convert to fraction form
    208,161.41/312,261.71 = 58,401.11/x
  3. Step 3: Cross multiply
    208,161.41x = 312,261.71 × 58,401.11
  4. Step 4: Simplify right side
    208,161.41x = 18,236,430,963.15
  5. Step 5: Solve for x
    x = 18,236,430,963.15/208,161.41
  6. Step 6: Final answer
    x = 87,607.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.